Since Snowy Escape Sims are dressed in cold weather gear upon game start up

What's the temperature? I've been playing a new Sim who lives in the Wakaba neighborhood of Mt. Komorebi. Even though it's spring, the temperature has never been above Cool and has dropped as low as Freezing. Cold Weather clothing is entirely appropriate.

I just loaded some other saves to check. I've found Sims in Everyday, Hot Weather, and Cold Weather outfits, and one Sim wearing her mermaid outfit. Their clothing has always been appropriate for their current weather and/or activity.